QuTiP: Quantum Toolbox in Python

I made a quick patch (https://github.com/qutip/qutip/pull/2397). It should work in the next release.

Could you post a code that fail and the version of qutip you are using? On Thursday, April 18, 2024

How do I represent ak ∣n1 n2 n3 ,,,,nn⟩ = √nk-1 ∣n1 n2 n3 ,,,,nn⟩ and ak dagger ∣n1 n2 n3 ,,,,nn⟩= √

Thankyou Eric, this was very helpful. On Tuesday, April 9, 2024 at 12:49:58 AM UTC+5:30 eric.g...@

Hi Khamul, The tlist that you pass to the solvers defines the time interval for the evolution. That

Hello Alex, Thanks for your attention. I have already calculated the partial trace to separate any

Greetings, QuTiP 5.0.0 has been released! QuTiP 5 is a redesign of many of the core components of

Hello QuTiPers, On behalf of the QuTiP admin team I'm excited to announce that we will release

You were right - a higher cutoff fixed the problem. Thanks! On 27 Mar 2024, at 10:14, Or Golan <or

Author: Spyridon Tsioupros Github account: https://github.com/Spiros7bit I wrote the proposal but

I am looking at optimisation for a state to state transfer of a subsystem of a Hamiltonian, with

Unable to run the test cases in (entropy.py) it show this error

`qutip.qeye(...)` is not a valid density matrix -- it is not normalized and has a trace of 2 instead

Hi there, Just in case you have not already looked at the example notebooks: Jupyter Notebook Viewer

I think setting initial pulse for GRAPE is different from setting initial pulse for CRAB, since for

Hi folks, Excellent news. Thanks all for sorting this out. I am assuming this will be helpful to

Hi, has someone worked out how to obtain the purity and entropy for systems consisting of multiple

Hello everyone, I need some help in calculating the partial trace over two qubits, normaly i should

Thanks Rochisha. Let's discuss in the pull request itself.

Hi Alex, V5 feedback was added recently and is only available on the master branch. For v4, here is

I am solving a problem where one of the summands of my Lindblad equation is as follows: When I build

Hi Marcel, Welcome to QuTiP. :) > O = tensor(A,B,C) > right? Correct. To change the ordering of

Dear Kingshuk, I have a question regarding the discussion we had about obtaining time-dependent

Any feedback is very much welcome! On Monday, January 1, 2024 at 11:56:11 PM UTC+1 Jung Nguyen wrote:

is it possible to create something like this with this? четверг, 21 декабря 2023 г. в 08:03:17 UTC+3,

Did someone develop a quantum adversarial network for images generation?

I have the derived lindblad equation, but with some changes. I have not found any functions/examples

Hi all, Given that we know the mean vector and the covariance matrix (single or two modes), what

Hi Szabó, You could try the option to pass a function as part of the e_ops list. Eg, def

Hi, I am trying to use QuTip to simulate the effect of a microwave drive on a qubit via the td